I bought Silkia and Epidermx...got the Camellia for my hair tho. I did use it on my face once...it wasn't bad but I didn't get overly excited about it, Im happy with my current moisturizer...I too have seen many good reviews on it tho.
As far as the Epidermx....LOVE IT
There's also a very similar product on ebay that I'm going to switch over to tho, almost the same ingredients but it feels like it has more or bigger crystals in it, you barely have to apply any pressure. If you search spa grade microdermabrasion you'll find it, seller is shiloh or something similar.
Im glad this came up cause I am almost out and need to order more...gonna go do that now!